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B and T World Seeds' reference number:
The average, annual, minimum temperature zone where Banksia speciosa is cold hardy
USDA Zone:9 20° to 30°F (-6.5° to -1°C)
|Type of plant - shrub
Flower or inflorescence:
YELLOW, to 15x12cm., cylind.
cone, velvet BROWN fol
to 40x3cm., lobed
|Height, in meters: 6
Height, in feet: 19.80
|Banksia speciosa sales history
Common names for Banksia speciosa:
is included in the following
B and T World Seeds flowering plant categories.
|18||: Australian and African Proteaceae|
|19||: Everlasting and Dried Flower Seeds Australian and Other|
|44||: Cut flowers Commercial and other Recommended Varieties|
|65||: World Coastal Tree and Plant Seed List|
|132||: Windy Condition Plant Shrub and Tree Seed List|
|185||: Plant Species whose germination is improved by Smoke|
|"Smoke" contains a butenolide compound produced by certain plants when heated, it speeds up or starts the germination of seeds from many different genera.|
|191||: Tropical Shrubs and Trees|
Some knowledge about growing from seed is necessary to germinate even the easiest seeds.
Most seeds require humidity to germinate, even desert plants like
require that their growing medium remains moist until germination.|
Most seeds require oxygen to germinate, if buried too deep in their growing medium, or if the medium is too wet,
the seeds may not get the oxygen they require.
Banksia speciosa seeds will usually germinate in 30-90 days, even under good conditions germination may be erratic.
Sow Banksia speciosa seeds on the surface of moist compost, use a translucent cover to allow light in and to keep the compost humid and warm (do not place in direct sunlight)